Lock-nut-pinching machine



v May 5, 1925.

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Filed Jan. 30, 1923 5 SheetsJ-Sheet l Quot nag Mays, 192s.

l. C. EMERY `LOCK NUT PINCHING MACH-INE Filed Jan. 150, `1925 5 snets-sheet 2 [HEZZZez May 5, 1925.

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LOCK NUT PINCHING MACHINE Filed Jan. 30, 14.923 5 Sheets-Sheet 5 c. EMERY Patented May 5, 1925.

fUNlTED STATES PATENT OFFICE.

` I. C. `EMERY, OF BALTIMORE, MARYLAND, ASSIGNOP T0` CHAPMAN SELF LOCKING NUT COMPANY, OF BALTIMORE, ll/IARYLAND, TRUSTEES OF COMMON LAW ESTATE.

LOCK-NUT-PINGI'IING MACHINE.

Application filed January 30, 1923. Serial No. 615,904.

To all whom it 'may concern:

Be it known that I, I. C. EMERY, a citizen of the United States, residing at Baltimore, in the county of Baltimore and State of Maryland, `have invented certain new and useful Improvements in Lock-Nutnlinching Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to machines for compressing or pinching slotted lock nuts, and has for its object to provide amecha nism which will be simple in construction, comparatively inexpensive to manufacture,

and more efficient in use than those hereto-v fore proposed.

lli/lith these and other objects in view, the invention consists inthe novel parts and combinations of parts constituting` the apparatus, more fully hereinafter disclosed and particularly pointed out in the claims.

`Referring to the accompanying drawings forming a part of this specification, in which like numerals designate like parts in all the 2, but showing the nut compressing parts in section and in positions different from those illustrated in Figure 2;

c Figure 6 is a sectional view similar to Figure 3, but showing the parts in an operative position similar to that shown in Figure and Figure 7 is` a detail sectional view of the pivoted nut compressing parts disposed in a vertical position. v

l indicates any suitable frame work, 2 a power pulley mountedon the shaft 3 carrying the driving pinion 4 meshing with the driven gear 5, mounted on the shaft 6, provided with the eccentric?, carrying the pin 8 actuating the connecting rod 9 pivoted as at 10 to the slidable member 11 reciprocating the plunger 18, adapted to reciprocate across the bottom of the chute 14, and to push out one at a time the nuts carried by said chute. The supporting block 16 asbest illustrated in Figures 3 and 4 forms the bot tom of th-e chute 14 and is provided with the inclined surfaces 17 and 18 adapted to rcceive the edges of the displaced nuts, and these surfaces terminate in the horizontal flat surface 19` which supports said nuts as they rest in the chute 14, Mounted on the gear 5 isa `cam 20, and slidingly mounted on the frame 1 as at 21 is a reciprocating rod or bar 22 having an upper edge 23 adapted to also temporarily supportthe nuts 15 immediately after they are pushed from the chute v14, and near said upper surface 23 the end of said bar 22 is beveled ofi' as indicated at 24, Figure 3. The other ond of `said bar 22 is provided with a pin or bolt 25, and sleeve 26 surrounding said bolt, a roller 27, at the end of said sleeve, and a nut 28 t hold said roller in place.

As will be clear from Figure 2, the cam 2O as it revolves with the gear 5, strikes the roller 27, and thus moves said bar 22 in one direction while stretching the spring 29. After the cam 2O ypasses the roller 27 the stretched spring returns the barl22 to its normal position. The supporting block 16 is provided with an extension 30 having an under surface 31 which overlies the bar 2-2 in its reciprocatory movements and further serves to hold and guide the bar 22 as it moves over the surface 32 of the frame member 1, all as will be plain from Figures 3 and 4.

Passing through vthe portion `33 `ofthe frame 1 is the adjustable screw member 34 provided with the nut 35 and the collar like member 36 to which is attached one end 4 of the coiled springs 37, the other ends of which are secured to a collar or flange 38 carried by a hollow thimble or anin the ways 12. To the member 11 is secured vil like member 39 which is provided with a ball 10 against which lits a cone shaped tapered plug; ll as illustrated. The point ot the cone l2 lit-s in a depression -l-B with which the screw member is provided. The thiinble or anvil like member S9 as well as the bolt Al() and cone shaped member 4-1 are thus` supported entirely by the still coiled springs 3T, and are enabled to swing, in all directions around the point 4t2 as a center. Said thimble like member 39 Yfurther in its normal position registers with the plunger so that when the nuts 15 are lforced out ot the chute 14:, they are torced against the said thimble like member 39,. because the screw S-l has been so adjusted as to cause the flat surface or bottom portion ot' the thiinble like member 39 to contact with said nuts just before the plunger .1f-l has completed its stroke in the direction which forces said nuts out ot the chute 14C. ll ow, the lock nuts 15 are all provided with slots and the purpose ot this machine is to close said slots at their outer ends as illustrated in Figure 5, so that the threaded porcmns or" the nuts on each side of the slots will not bc parallel to each other and will thus bite into the threads or" the bolt to which they may he applied and cause a girin locking` action. (ln the other hand, as is well l'cnown, it is very ditlicult to get nuts ot the character illustrated to pass down a chute and always present the eX- treme outer end ol the slot at the very bottom of the chute. ln other words, as is well known the nuts in coming down the chute will have said extreme outer end turned in all sorts ot directions, with the result that a plunger auch as 13 would sometimes strike the nut in the proper position to close the slot as illustrated, while at other times it would strike another portion ot the nut. and thus tail to function properly unless the nuts should all be carefully oriented betore the plunger acts upon them.

lVith this invention, on the other hand, the thimble B9 being' pivoted around the point 4t2 as a center, it makes no difference how the nut 15 may be oriented or positioned with respect to the extreme end ot the slot 4:" at the bottom ot the chute, tor said nut will be jammed against the thimble or anvil and said thimble will always turn on its pivot 4Q in such a way to receive the. pressure of the reciprocatingplunger 13 in a direction suited to the proper closing!" oli the slot 45. That is to say, when thc extreme end 4G of the slot happens to occupy its lowest position as is indicated in F inure then the thimble 39 automatically turns upwardly as illustrated in said ligure, and the jaws ot the nut are properly closed as shown. 0n the other hand, suppose the extreme end -l-G oi the slot should be prei-iented in a position 180o trom that shown in Figure thin'rble 39 would be turned downwardly as seen in :i aid figure instead ot' upwardly and the jaws ot' the nut would be just as ettectively closed. Should the extreme edge ot thc slot -l be turned through an angle ot SOG, in au upward direction, as seen in li`ieure 5, then the thinlble 39 would. correspmidinply be turned in a direction perpendicular to the plane ot the paper, and the nut would likewise be properly closed. The same remarks apply should therextreme edge -ilG ol the nut l5 be turned through an angle ot 9u@ in a downward direction from the position shown in Figure 5. ln other words,

a little consideration will show that no matter how the slotted nuts 15 may be presented at the bottom ot' the chutel 14, the thimblc or anvil 3S) will in every case turn on its pivot 42 so as to causeI the proper closure ot the jaws ot the mits 15.

rlhe parts are so timed that the surface Q3 of' the rod 22 supports the nuts 15 during the action ot closing the slots in the manner above indicated, but as soon as the j )lunger 13 recedes the rod Q2 also recedis so that its inclined :alrtacc 'forms a continuation ot the inclined surface 1S ot the block 1G and thus permits the nut whose slot has been closed to drop by gravity down past the inclined surface el() ot' the frame 1, see Figures 3 and 6. A; suitable receptacle not shown provided 'for the nuts, whereupon they are ready t'or shipment and use.

lt will now be clear that after screw threaded nuts 15 haveA been provided by any suitable means with the slots l5 they may be fed in quantity to the chute 1'5-1, and may bc permitted to reach the bottom of said chute in any haphazard positions, so long as the slots 45 remain in a vertical plane. lt will further be clear that the plunger 13 in its reciprocations tirst pushes out the bottom nut onto the surface 23 ot' the reciprocating rod 22 and compresses the jaws of said nut. together no matter in what direction the slot 45 ot' the nut may point, for the pivoted thimble 39 turns in such a direction as will p'esent its full fiat bottom portion to the flat surface ot the nut, and thus will the jaws be properly compressed to form a lock nut out of the slotted nuts 15.

It will further be clear that as soon as the compressing plunger 1B recedes trom its compressing` position, the rod 2Q will recede due to the action of the cam 20 on the roller 27 and the nut will thus be permitted to fall out of the machine down past the inclined surfaces 18, 24 and 46, as will be clear trom F ig'ure 6.

It is obvious that although this machine shows the thimblc or anvil 89 as operatiney in a horizontal direction yet it is not at all necessary that it be so positioned. In Fig'- ure T, the thimble 3S) is illustrated as being In that case, the

`in a vertical position, when compared with as well as in a horizontal position. In fact,

there is no necessity that the thimble 39 be oriented in any particular position. It will function satisfactorily whether it is inclined to the horizontal or not. It is further evident that other mechanisms may be employed to provide areciprocating plunger mechanism, the equivalent of the plunger 13, and therefore I do not wish to be lim` ited to the above disclosure except as may be required by the claims.

What I claim is:

l. In a machine for pinching slotted nuts the combination of means to sup-port said nuts; a movable member adapted to apply pressure to said nuts; and a pivoted member adapted to resist the applied pressure.

2. In a machine for compressing portions of slotted nuts, the combination of means capable of movement in horizontal and ver-` tical directions adapted to receive pressure from said nuts; and means to compress said nuts against said first named means.

3. In a machine for compressing portions of slotted nuts, the combination of means to feed said nuts into positions to be compressed; a movable means to apply pressure to the fed nuts; and means capable of movement to one side of the direction of movement of said first named movable means adapted` to receive pressure from the compressed nuts. i

et. In a machine for compressing portions of slotted nuts the combination of means comprising a chute to feed said nuts into positions to be compressed; a movable means comprising a plunger to apply pressure to the fed nuts; and means comprising an aiivil capable of movement to one side of the direction of movement of said first named movable means adapted to receive pressure from the compressed nuts. y

5. In a machine for compressing portions `of slotted nuts, the combination of means to feed said nuts into positions to be compressed; a movable means comprising a reciprocating plunger to apply pressure to the fed nuts; and means comprising a pivoted anvil capable of movement to one side of the direction of movement of said first named movable means adapted to receive pressure from the compressed nuts.

G. In a machine for-compressing portions of slotted articles, the combination of means to hold said articles in positions to be compressed; means to apply `pressure to said articles; and an anvil to receive the compression of said articles adapted for movement in two planes.

7. In a machine for compressing articles having some portions more easily distorted than others, the combination of means to supply the power to compress saidarticles; and an anvil to receivel the compressive force applied to said articles, said anvil pro? `vided with means adapting it to automati` cally so move during the compressive action asto cause the more easily distorted portions of said articles to receive the most compression.

8. In a machine for pinching slotted nuts, the combination of movable means to support said nuts; a reciprocating movable member adapted to apply pressure to said nuts; and a pivoted member adapted to resist the applied pressure.

9. In a machine for compressing portions of slotted nuts, the combination of means comprising an anvil capable of move-ment in horizontal and vertical directions adapted to receive pressure from said nuts; andpower driven reciprocating means to compress said nuts against said first named means.`

10. In a machine for compressing portions of slotted nuts the combination of means to feed by gravity said nuts into positions to be compressed; a reciprocating movable means to apply pressure to the fed nuts; and means comprising a pivoted anvil capable of movement to one side of the direction of movement of said first named movable means adapted to receive pressure from the compressed nuts.

11. In a machine for compressing portions of slotted articles, the combination of means comprising a reciprocating member to hold said articles in positions to be compressed; power driven reciprocating means to apply pressure to said articles; and an adjustable pivoted anvil to receive the compression of said articles adapted for movement in two planes.

12. In a machine for compressing slotted articles the combination of means to apply the compressive force to said articles; and a spring'controlled anvil pivoted for movement to one side of the direction of the applied force adapted to receive said articles during their period of compression.

13. In a machine for compressing articles the combination of a power driven reci rocating plunger; means to automaticaly feed articles into position to be compressed by said plunger; and a pivoted adjustable anvil normally in line with said plunger adapted to receive said articles while being compressed but to be automatically partially deiected from said line when the conipression of different parts of said articles are unequal. l

14C. In a machine for applying a compressive power to a slotted article the combination of means for supplying said power; a spring controlled anvil for receiving said article during its compression; and means for permitting said anvil to move in different directions when the-compressive force is not uniform over its surface.-

l; In a machine for applyingI zi compressivepower to=zi slottedl article, the combina- 2tion of means comprising-zi reciprocating plunger forsupplyingsaid power; :i spring controlled anvil foil` receiving said article during' its compression; and ineens comprising a ball and a pivoting member foi` permitting said anvil to move in different directions when the compressive force is not uniform over its surface.

In testimony whereof I affix my signature.

I. C. EMERY. 

